Let's divide 11218311 by 665
The aim is to understand the frequency of 665 in 11218311.

On to step 1:
665 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 665

Going ahead to step 2:
665 can be fit into 11 0 times, resulting in a remainder of 11.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 11 after subtracting 0 from 11.
Include the next digit (2) from the dividend after 11, then repeat: 112 / 665

Let's proceed to step 3:
665 goes into 112 0 times with a remainder of 112.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 112 leaves us with 112.
Bring next digit (1) of the dividend behind the 112 and repeat the process: 1121 / 665

Going ahead to step 4:
1121 divided by 665 is 1 with a remainder of 456.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 665 from 1121 to get 456.
Fetch the next digit (8) from the dividend, attach it to 456 and continue: 4568 / 665

Let's proceed to step 5:
If we divide 4568 by 665, we get 6 and a remainder of 578.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtract 3990 from 4568 to get 578.
Bring next digit (3) of the dividend behind the 578 and repeat the process: 5783 / 665

Moving on to step 6:
When dividing 5783 by 665, we get 8 with a remainder of 463.
Record the quotient 8 as the next digit in the result. 
Result so far: 168.0
Subtracting 5320 from 5783 leaves us with 463.
Append the next digit (1) from the dividend to 463 and continue with: 4631 / 665

Going ahead to step 7:
4631 divided by 665 is 6 with a remainder of 641.
Write down 6 as next digit of the result. 
Result so far: 1686.0
The remainder is 641 after subtracting 3990 from 4631.
Include the next digit (1) from the dividend after 641, then repeat: 6411 / 665

Advancing to step 8:
If we divide 6411 by 665, we get 9 and a remainder of 426.
Record the quotient 9 as the next digit in the result. 
Result so far: 16869.0
Deduct 5985 from 6411 and we're left with 426.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4260, and continue the process.

Advancing to step 9:
The number 665 fits into 4260 6 times, leaving a remainder of 270.
The number 6 becomes the next digit in our result. 
Result so far: 16869.6
If we subtract 3990 from 4260, we get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 10:
If we divide 2700 by 665, we get 4 and a remainder of 40.
The number 4 becomes the next digit in our result. 
Result so far: 16869.64
Subtracting 2660 from 2700 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
If we divide 400 by 665, we get 0 and a remainder of 400.
The next digit of our result is 0. 
Result so far: 16869.64
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 12:
When dividing 4000 by 665, we get 6 with a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 16869.6406
If we take 3990 away from 4000, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 13:
100 divided by 665 is 0 with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 16869.6406
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 14:
1000 divided by 665 is 1 with a remainder of 335.
The number 1 becomes the next digit in our result. 
Result so far: 16869.640601
The remainder is 335 after subtracting 665 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

On to step 15:
665 can be fit into 3350 5 times, resulting in a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 16869.6406015
If we subtract 3325 from 3350, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 16:
250 divided by 665 is 0 with a remainder of 250.
Put 0 as the next digit of the answer. 
Result so far: 16869.6406015
Subtracting 0 from 250 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

In conclusion, the division gives 16869.6406015 with a balance of 2.5e-07.